In this schematic the "Washer-seal,10.1x14.5" is used most often.
A sample from the products for the Rear Master Cylinder include: Hose-brake,rr,l=712, Ring-o,14.8x2.4, Clamp,hose, Hose-brake,rr Master.
The Pin-cotter,2.0x15 is the cheapest item from this partsfiche.